Protactinium

From Lunarpedia
Jump to: navigation, search
Protactinium
Pa
In situ availability:
Necessity:
Atomic number: 91
Atomic mass: 231.03588
group: 19
period: N/A
normal phase: Solid
series: Actinide
density: 15.37 g/cm3
melting point: 1841K,
1568°C,
2854°F
boiling point:
CePrNd
Th ← Pa → U
N/AN/AN/A
Atomic radius (pm): 180
Bohr radius (pm):
Covalent radius (pm):
Van der Waals radius (pm):
ionic radius (pm): (+5) 78
1st ion potential (eV): 5.89
Electron Configuration
1s2
2s2 2p6
3s2 3p6 3d10
4s2 4p6 4d10 4f14
5s2 5p6 5d10 5f2
6s2 6p6 6d1
7s2
Electrons Per Shell
2, 8, 18, 32, 20, 9, 2
Electronegativity: 1.5
Electron Affinity: -
Oxidation states: 5, 4
Magnetism: ?
Crystal structure: Tetragonal

Protactinium is a Actinide metal. It has a Tetragonal crystalline structure. This element has no stable isotopes.




This article is an automatically generated stub. As such it may contain serious errors.
You can help Lunarpedia by expanding or correcting it.